{
  "name": "Upper Colorado River Scenic Byway",
  "slug": "colorado-river-byway-ut128",
  "url": "https://www.bestdrivingroads.com/roads/colorado-river-byway-ut128/",
  "summary": "The River Road out of Moab follows the Colorado through a narrow red sandstone gorge for 30 miles, past riverside campgrounds, the film country of Professor Valley and the Fisher Towers, to the remains of the Dewey suspension bridge.",
  "roadNumbers": [
    "UT 128"
  ],
  "location": {
    "country": "United States",
    "region": "Utah",
    "start": {
      "name": "Moab",
      "lat": 38.60157,
      "lon": -109.575778
    },
    "end": {
      "name": "Dewey Bridge",
      "lat": 38.812579,
      "lon": -109.303822
    }
  },
  "measurements": {
    "lengthMiles": 29.9,
    "lengthKm": 48.1,
    "driveMinutes": 60,
    "corners": 30,
    "hairpins": 0,
    "maxGradientPercent": 5,
    "summitMetres": 1315.6,
    "elevationConfidence": "measured",
    "difficulty": "moderate",
    "tightnessOutOf10": 5
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "autumn"
    ]
  },
  "conditions": {},
  "hazards": [
    "One lane with traffic control near Grandstaff Canyon until the end of October 2026",
    "Blind corners without shoulders",
    "Rockfall from the canyon walls",
    "Cyclists on the narrow road"
  ],
  "scenery": [
    "desert",
    "gorge"
  ],
  "pointsOfInterest": [
    "Grandstaff Canyon Trailhead",
    "Big Bend Campground",
    "Cowboy Grill",
    "Dewey Suspension Bridge"
  ],
  "geometry": {
    "pointCount": 223
  },
  "attribution": {
    "source": "bestdrivingroads.com",
    "citation": "Cite with a link to the road page. Stats are measured from the mapped line; where elevationConfidence is \"approximate\" the 30 m DEM cannot resolve that line and the elevation figures are indicative.",
    "roadGeometry": "(c) OpenStreetMap contributors, ODbL",
    "terms": "Facts are free to cite with attribution; bulk reproduction of the catalogue requires permission (simon@keane.studio)."
  },
  "updated": "2026-10-11"
}